People always bring up that one line/scene to badmouth Jazz. They seem to completely disregard the fact that never does anything like that the rest of the movie. It actually portayed him as compassionate and heroic.

I actually really did like Jazz in the first movie, simply because he did have moments of seriousness, and his line in the Autobots arrival scene was great because it made the audience realise that Transformers have personalities.

Again, none of the black characters in the Transformers movies are incredibly offensive on their own. But when viewed as a whole, it gets a bit annoying.